Box machine



L. W. DARLING.A

BOX MACHINE. r APPLICATION FILED IAN.27, 1922.

2 SHEETS-SHEET l.

Patented. July M, 1922.

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L.` w|` DARLING. Box MACHINE. APPLICATION FILED IAN.27. 1922.

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Patente/ Juy M, 1922.

2 SHEETS-SHEET 2.

STS PTT OFFICE.

Lonniv w. nale-Line,

OF SYCAIVIORE, ILLINOIS. ASSIGNOR 0F ONE-HALF T0 ALBERT E.HAMMERSCHMIDT, 0F SYCAMORE, ILLINOIS.

BOX MACHINE.

Maasai.,

Specification of Letters Patent.

Patented Juiy ii, ieee.

Application filed January 27', 1922. Serial No. 532,206.

To ZZ 07mm 'it may concern.:

Be it known that l, lionnn W. Destino, a citizen of the United States,and a resident of Sycamore, De lKalb County, and State of Illinois, haveinvented certain new and useful Improvements in Box Machines, of whichthe following' is declared to be a full,^clear, and-exact description.

This invention relates to bei; machines, and more particularly tomachines for applying pressure to the Flaps (after glue has been appliedto them) of cartons. such as pasteboard, cardboard or strawboard boxes.The cartons` with which this machine has to do, are made in the form oftubular articles of rectangular form', provided with lflaps at bothends, that have yto be folded down and glued together to close the endsof the carton or box. The machine forming the subject matter of this'specification has been designed for use in sealing one end of thecartons, that is to say, the end which forms the bottom of the carton orbox, and one of its principal objects is to provide means to insure theformation of square corners for the box. Another object is to provide amachine which will occupy comparatively small space and has a capacityfor having a large number of boxes at a given time. .another object isto provide a machine which is simple in construction and comparativelyinexpensive to manufacture and is highly etlicient for the purpose forwhich it is iiitended. The invention consists in the several novelfeatures of construction, arrangement and combination of partshereinafter fully set forth and claimed.

, The invention is clearly illustrated in the accompanying drawings, inwhich:

Fig. 1'is a plan of a box machine embodying a simple form of the presentinvention; Fig. 2 is a View partly in side elevation and partly invertical section thereof.. the line of section being indicated at 2-2 inF ig. l.; Fig. 3 is a side elevation of one of the pressure heads of themachine; Fig. Ll is a. detail,

`1vertical, cross-section, taken on the line Ll-eelof Fig. 3'; Fig. 5isa View similar to Fig. 4;,

I but showing the upper pressure block iii raised position, and Fig. 6is a perspective view of a carton or box, showing` two ot the Hapsfolded down.

Referring to said drawings, the reference character 10 designates a baseof iectaiigular formmounted uponrollers 11, whereby the machine may bereadily moved about from place to place. Said base is` formed oflengthwise and crosswise extending frame members 12, suitably securedtogether, and a top base member 13. Secured to and extending up fromsaid base is a centrally located stationary post or standard 14, which.extends through the top base member 13 and is.' secured thereto by nuts15, which are threaded upon the lower threaded end of the post 14 andare screwed up against the upper and lower faces of the top base member13. Rotatively mounted on said base 1t) is a turntable 16,; whichconveniently may comprise two spaced plates 17, and radially extendingarms 18 secured between said plates by bolts 19. The turnable rotatesabout the post 14 and between the turntable 16 and base 10 areinterposed anti-friction bearings 20. The particular construction of theturntable just described is immaterial, but it serves for the purpose ofillustration.

Extending up from said turntable are lower pressure heads, which maycomprise lower pressure blocks 22 and posts or pedestals 21, which arearranged circumferentially about the axis of rotation of the turntable.Said posts or pedestals 21 are. secured to the outerends of the arms18ct' the turntable, and support, at their upper ends, the rectangularlower pressure blocks 22, which are made of the proper size and shape tolit nicely within the cartons when the latter are slipped over them.Said blocks 22 may be. loosely supported on the posts 21, if desired,and, they may be provided with downwardly projecting stems or lugs 23(see Figs. and 5) which enter hollow portions of the posts and hold themin place thereon. The blocks 22 are also formed with transverselyextending grooves 24 in their upper faces, which are adapted to receiveany surplus glue or adhesive material, which may drop from the flapswhile under pressure.

Associated with each lower pressure head is an upper pressure head 25,which has an upper pressure block 26, that may be brought over and abovethe lower pressure block 22. The several upper pressure heads aresimilar in construction and consequently a description of one willsuflice for all.

Each upper pressure head is pivotally secured to the turntable 16,whereby the upper pressure block 26 thereof may be swung over anassociated lower pressure block 22, and in theforrnof the inventionillustrated, .the upperpressure head contains 4two parallel supportingrods 27, the lower ends of which are lsecured to a shaft 28 whichextendsftrans- Versely 'through the post 2l and has collars 29 securedto it that bear against the post and prevent endwise movement of theshaft. The rod 27 and shaft 28 may be connected together by T fittings30, as shown, and the rods'27 are threaded' and have nuts-3l on theirthreaded'ends, wherebysai'd rods 2T maybe adjusted lengthwise'ofit-hemselves inthe T fittings, to regulate the distance' between thepressure block 26 and the pressure block 22, when one is abovethe otherand before the upper one islowered.

The -pressure -liloc'k 26 is removably secured to theun'derside ofa'pressure block supporting `plate 32 'by bolts, `which plate is'formedwith'bosses 33 upon its opposite endsgthat are 'slidably-mountetl on therods 27. 'From this, it willv be understood that theplate 32 with its'attached pressure blook y 26 `is 'slidably mounted "on the swingingrods-27. f

lAbovefthe pressure block :supportingplate 32 isa pressure applyingdevice, which,as shown,"comprises a pressure lever 34 rotatively mountedon a shaft 35 which is secured 1 f in' T'Httings 36 that are'adju'stably mounted onfthe upper endsy ofthe' swingingrods27 and securedthereon by nutsx 37 threaded on the rods 27. The plate 32 anditsbflock26are supported' from t'helever34 by labailf40.

' The pressurelever 34'iis formed with a curvedbearing face, 138, 'whichis egocentrically disposed withrespeet to theaxis ofy the shjzift 35,`whereby `when the l'lever'34 'is swung from the position illustratedi`n*Fig.

` 5, to that illustrated'inlfig.'4, vthe' eccentric bearingl face 38will vbe forcibly brought into Contact with 'the plate 232, and thelatter, with itspressure'block 26, will be forcibly brought down upontheiflapsy of a carton held y'between the press-ure blocks.

The pressure lever 34 has -a han'dle).where-v by it is operatedandwherebyy the-'entire upper pressure head is 'operatedin applyingpressure to the flaps of cartons, A head .rest 41 is secured upon theupper end ofthe 'central post 14 in position to act as 'astop againstwhich the movable pressure heads may rest when thrown back, out ofroperative position. l

To insure the formation'of square corners for the cartons, lsideengaging rollers 142 are provided '.on vthe upper pressure head, whichrollers are arrai'iged to engage with two opposite, sides'of thecartons; l'Sa-id i" rollers 42 are mounted on 'pins-or stems 43.

that form the joint between toggle links 45, which are pivotallyconnected to the support-ing plate bosses 33, and'to `collars 46 thatare secured on the supporting rods 27. rlhe collars 46 rest on coiledsprings 47 which are supported by collars 48, fast on the .rods .27, andsaid springs 47 allow the rollers 42 to yield slightly in case of slightvariations in the thickness of the carton walls. lVhen the upperpressure board is raised from the position seen in Fig. 3, the togglelinks 44 and 45 straighten out and move the 'rollers -42==away from thesides of the carton, thereby permitting the upper pressure head to be'freely swung'back and forth without interfering with the carton. On theback of the block 26 is a downwardly projecting shoulder"49 which isarranged to engage the lower pressure block 22 or an interposed cartonwall, to properly position the upper pressure block thereabove.

In the operation of the machine, and assumingthat all of the movablepressure heads are thrown back andresting against the head rest 41, theattend'antplaces a tubular carton A, (see Fig') over a pressure block22,'folds down two opposite end flaps a on the block 22,-appliesglue orother yadhesive material to sai'diiaps, and folds down the other twoflaps a. He then takes hold of the handle?, draws the upper ormovablepressure head forward until the shoulder'49 strikesthef'blook 22, orrather the interposed wall of 'the carton, whichbrings the upperpressure block 26 directlyiover the lower pressure block 22, andthe'interposed folded flaps u, a. die then swings backi the lever 34from the position shown in Fig. 5 to that shownin Fig. 4, therebylowering the uppery pressure block yupon the flaps and finally pressingit firmly down thereon, as the major diameter of the .eccentric'portionof-the leverreaches the plate =In this position; thefl aps .areheldriunder pressure by the llever`8'4, rwhich automatically'becomeslocked in placeias the high part off the eccentricfacereaches-thefplate.

The attendant thereupoln'turns 'the turntableHuntil the-neit' adjacentpressure head comes in front of hirnfand repeatsthe :operation onanother carton. By'the time the v[irst carton has' made a compfletecircuit and reaches the attendant, the glue has had. time to -setan'dithe attendantswings forward the lever 34 off they upper pressure'head (holding the finished carto-n), thereby raising the mensions,various sizes of cartons may be operated on by the machine.

More or less variation of the exact details of construction is possiblewithout departing from the spirit of this invention; I desire,therefore, not to limit myself to the exact form of the invention shownand described, but intend in the following claims, to point, out all ofthe invention disclosed herein.

l claim as new and desire to secure by Letters Patent:

l. ln a box machine, the combination of a base, a turntable rotativelymounted thereon, and having a plurality of lower pressure headsextending up therefrom, circumferentially about its axis of rotation,and upper pressure heads, one co-operating with each lower 'pressurehead and fulcrumed on said turntable, said upper pressure heads havingpressure blocks capable of being moved over said lower pressure headsand movable lengthwise of said head, and pressure levers for clampingsaid pressure blocks upon the folded flaps of a carton.

2. In a box machine, the combination of a base, a turntable rotativelymounted thereon, and having a plurality of lower pressure headsextending up therefrom, circumferentially about its axis of rotation,and upper pressure heads, one co-operating with each lower pressure headand fulcrumed on said turntable, said upper pressure heads havingpressure blocks capable of being moved over said lower pressure headsand pressure levers pivotally supported on said upper pressure heads andhaving eccentric bearing faces arranged to be brought into forcibleengagement with said upper pressure blocks, whereby folded flaps ofcartons may be held under pressure between said pressure blocks.

3. In a box machine, the combination of a base, a turntable rotativelymounted thereon, a plurality of posts extending up from said turntable,and arranged circumferentially about its axis of rotation, lowerpressure blocks removably secured on said posts, and upper pressureheads, one for each lower pressure block, each upper pressure headhaving an upper pressure block, and being fulcrumed on an associatedpost, whereby said upper pressure block may be moved` over a lowerpressure block, and pressure levers mounted on said upper pressure headsand arranged to be brought forcibly into engagement with said upperpressure blocks, to apply pressure upon folded Flaps of a carton heldbetween said upper and lower pressure blocks.

4l. In a box machine, the combination of a base, a turntable rotativelymounted thereon, a plurality of circumferentially arranged lowerpressure heads supported by said turntable, each head having arectangular lower pressure block, upper pressure head frames,

block supporting connection between each upper pressure block and itsassociated pressure lever.

5. In a box machine, the combination of a base, a turntable rotativelymounted thereon,

a plurality of circumferentially arranged lower pressure heads supportedby said turntable, each head having a rectangular lower pressure block,upper pressure head frames, one associated with each lower pressure headand fulcrumed thereon, an upper pressure block slidably mounted on eachframe, an eccentric pressure member carried by said frame and having ahandle, anda block supporting connection between each upperpressureblock and its associated pressure member.

6. In a box machine, the combination of a base, a central postextending` up therefrom, a head rest on said post, a turntablerotatively mounted on said base, lower pressure heads secured to andextending up from said turntable, said lower pressure heads having lowerpressure blocks and being circumferentially arranged about theturntable, and upper pressure heads fulcrumed on said lower pressureheads, and having upper pressure blocks arranged to be brought intoforcible contact with the folded flaps of a carton held between saidpressure blocks` and said upper pressure heads being capable of beingswung back against said head rest to uncover said lower pressure blocks.

7. In a box machine, a. lower pressure head, having a post and arectangular lower pressure block secured on its upper end, a framefulcrumed on said post and having` two parallel guide rods, an upperrectangular pressure block slidably mounted on said guide rods, and apressure lever for said upper pressure block, carried by said frame, andhaving a handle whereby said lever and frame are manipulated.

8. In a box machine, a lower pressure head, having a post and arectangular lower pressure block secured on its upper end, a framefulcrumed on said post and having two parallel guide rods, an upperrectangular pressure block slidably mounted on said guide rods, apressure lever for said upper pressure block, carried by said frame, andhaving a handle whereby said lever and frame are manipulated, and a bailconnecting said upper pressure block and lever.

9. ln a box machine, a post, a rectangular lower pressure blocksupported thereon, a frame fulcrumed on said post, an upper rectangularpressure block slidably mounted on said frame, a pressure lever for saidblock, laterally movable side engaging rollers supported on said frameand autoai., i maar@ matie means for thrusting them against lthe sidesof a carton held on said :lower pres- `sure block.

10.',l'nabox machine7 `a post, a rectangular lower pressure bleeksupported thereon, a frame fulcrumedon said ,post`,a n upper rectangularpressure block slidably `mount- .ed on said frame, a pressure lever forsaid block, laterally movable side engagingrollers, toggle linkssupporting ysaid ,rollers at the joint between the links, the upper endsof said toggle links being connected to said upper` pressure block, andbeing movable relative to the lower ends of saidl toggle links.

. 11. In a boxpmacliine, ia post, laireetangular lower-.pressure blocksupported thereon, a frame -ulcrumed on said post, an upper rectangularpressure block slidably rrrounted on said frame, .ya pressure :lever forsaid block, laterally movable side engaging roll- ,ers,toggle linkssupporting said rollers at the joint bet'vveen theglinks', the upperends of said toggle links beingconnected to said upper pressure block,.and collars on the trainato .which the lower ends of said togglelinksare connected.

Von said iframe, a pressure lever `for said block, laterally movableside engaging rollers, toggle vlinks `supporting said rollers at lthejoint between the links, the upper ends ot said toggle links beingconnected to said upper pressureblock, movable collars on the -frame, towhich the lowerends ofsaid toggle links are connected, collarsstationariiy securedio the frame and coiled springs be tween saidlcollars.

` LOREN W. DARLING.

